Wheeled scraper.



PATENTED AUG. 15, 1905.

M. DUN-N. WHEELBD SGRAPER.

APPLICATION FILED JULY 25, 1904.

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'PATENTED AUG. 15, was.

M. DUNN. WHEELBD SGRAPER.

APPLIOAZ'ION FILED JULY 25. 1m.

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UNTTEE sTaTEs PATENT oEEToE. MICHAEL DUNN, OF MILTVA'UKEE, WVISCONSIN.

WHEELED SCRAPER.

Specification of Letters Patent.

Patented Aug. 15, 1905.

Application filed July 25, 1904:. Serial No. 217,931.

T at whom it Uta/y concern/.-

Be it known that I, MIOHAEL DUNN, a citizen of the United States,residing at Milwaukee,county of Milwaukee, and State of Viscousin, haveinvented new and useful Improvements in Wheeled Scrapers, of which thefol lowing is a specification.

My invention relates to improvements in wheeled scrapers.

The object of my invention is to provide a form of scraper which may bedriven and manipulated by mechanical power under the manual control ofthe operator, who is enabled to .apply the power for driving the vehicleupon which the scraper is mounted and for lifting and dumping thescraper.

In the detailed description reference is had to the accompanyingdrawings, in which Figure 1 is a side view of my invention. Fig. 2 is adetail view of the means for releasing the scraper-supporting bars fromraised position. Fig. 3 is a detail view, partly in section, showing oneof the standards and the scraper-supporting bars in section andillustrating the relation of one of the spring-actuated catches and itsreleasing mechanism thereto. Fig. 1 is a detail front view of thedriving and reversing gears of the vehicle. Fig. 5 1s a general planview of my lnvention. Fig.

6 is a detail view of the front end portion of the vehicle in verticalsection, showing the scraper-pan in dumping position.

Like parts are identified by the same reference characters throughoutthe several views.

The vehicle-frame 1 is mounted upon supporting-wheels 2 and 3 and issteered by means of a hand-wheel 4:, vertical rod 5, pinion 6, andgear'wheel 7, the latter being fast on the pivot-post 8, connected withthe axle-bar 9 of the rear wheels 3. 12 is a motor for driving thevehicle, any suitable style of motor being employed. 13 is a fly-wheelconnected with the motor, and 14: is a motor-shaft from which power istransmitted to the drive-shaft 15 by means of a pinion 16 andgear-wheels 17 and 18, the latter being fast upon the shaft 15.

A shifting clutch member 20 of ordinary type is mounted upon the shaft15 and operated by means of a lever 21, whereby it may be shifted alongthe shaft either into engagement with the counterpart clutch member ofthe gear-Wheel 22 or the similar member of the gear-wheel 23. hen theclutch member 20 is shifted to engage and actuate gear-wheel 22, aforward motion is communicated to the vehicle through said gear wheel22, gearwheels 25 and 26, chain 29, and sprocketwheel 30, the latterbeing connected with the front or traction drive-wheels 2.

hen it is desired to back the vehicle, the clutch member 20 is shiftedto engage the gear wheel 23, whereupon motion will be transmitted,through said gear-wheel and a gear-wheel 31, to the shaft 27. Thismotion is in the opposite direction from that communicated through thegear-wheel 22. hen the clutch member 20 occupies the intermediateposition, it is obvious that the shaft 15 may rotate without driving thevehicle in either direction, wheels 22 and 23 being loose on said shaft.

A scraper-pan is supported by bars 36 in front of the vehicle. The bars36 are pivotally connected at 37 with standards 38 and are alsopivotally connected at 39 with the a front portion of the scraper-pan,as best shown in Fig. 1, the bars being provided with an elbowed portionat 10, adapted to permit the scraper-pan to be lowered, as indicated bydotted lines in Fig. 1.

To elevate the scraper-pan, the bars 36 are lifted by means of the cablea2 and branch cables 43, connected with the respective bars. Cable 42 iswound upon a winding-drum 4a, which is actuated from the shaft 15through the medium of the shifting clutch member 15 and gear-wheels 46and 17, the clutch member 4E5 being shifted by means of a lever 18.

The branch cables 13 are passed over suitable pulleys 419, connectedwith frame-standards 50, and the ends of the cables are connected withthe bars 36 near the elbowed portion, so that when cable 42 is woundupon drum 4 1 the bars 36 will be lifted to elevate the scraperpan. thescraper-pan with the respective bars, thus preventing the scraper-panfrom tilting downwardly at its rear end when elevated.

To dump the scraper, a cable 56 is connected with the scraper-pan at itsrear end near the bottom. This cable is passed over a suitable pulley57, supported from the standards and wound upon a winding-drum 58, whichmay be driven from the shaft 15 by means of a shifting clutch member 59and gear-wheels 60 and 61. A lever 62 is used to operate the clutchmember 59.

When the scraper-pan is lifted, it is desirable that it should besupported independently of the cables. I have therefore provided Chains52 connect the rear corners ofspring-catches 65, which are connectedwith the auxiliary standards 66 and are adapted to spring inwardly to aposition of support underneath the bars 36 when the latter are in raisedposition. These catches may be manually released by means of a cable 68,branch cables 69, elbowed levers 70, and links 71. The latter connectone arm of each elbowed lever 70 with the corresponding catch 65. Therear end of the cable 68 is connected with the frame-standards 38 at 72or at any other convenient point where it can be readily reached by theoperator. A latch 75 is arranged to cooperate with the catches 65 insupporting the scraper-pan in raised position. This latch is mounted ina suitable guide 76 and is actuated by means of a spring 77, whichautomatically pushes it forwardly in position to engage in notches 78,formed in the rear wall of the scraper-pan. The front end of the latch75 is beveled, so that it will be pushed backwardly during the upwardmovement of the pan 35. The notches 78 are formed to facilitate theretraction of the latch during this movement. The latch, however, ispressed forwardly into each notch of the spring 77, so that it willengage and support the pan at any point of elevation. When it is desiredto lower the pan, the latch may be manually retracted by means of acable 79.

The scraper is provided with a draft-yoke 80, adapted to facilitate theattachment of horses, if desired. The pan is also provided with prongs81, adapted to loosen up the soil in advance of the pan.

In operation the vehicle is propelled forwardly, as above explained, byshifting clutch member 20 into engagement with gear-wheel 22. Thescraper-pan is lowered at the desired point by pulling upon the cable 68to retract the spring-catches 65 from their supporting positionunderneath the bars 36, the latch 75 being also retracted, thuspermitting the pan 35 to drop by gravity to the position in which it isshown by dotted lines in Fig. 1. When the pan is filled, the clutchmember 45 is shifted to engage gear-wheel 46, whereupon the winding-drum4A is actuated, winding up cable 42 and lifting the pan until thespring-catches 65 engage underneath the bars 36, whereupon the clutchmember 45 is moved to position of release. When it is desired to dumpthe pan, the clutch member 59 is shifted to engage the gear-wheel 60,whereupon power is applied to actuate the windingdrum 58 to wind up thecable 56. This movement lifts the rear end of the pan and causes it totilt upon the pivot-studs 39 until it swings to the position in which itis shown by dotted lines in Fig. 4, when the contents of the pan will bedumped. The clutch member 20 may then be shifted to engage gear-wheel23, whereupon the vehicle will move in the opposite direction and returnto the startingpoint.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a machine of the described class, the combination of a vehicleprovided with a motor; a pair of bars pivotally connected with saidvehicle and projecting forwardly there from; a scraper-pan pivotallyconnected with the bars in front of its center of gravity and flexiblyconnected with supporting-bars in the rear of its center of gravity; awinding-drum and means for driving the same from the motor; a cableoperatively connecting said drum and scraper-bars; and motor-operatedconnec tions for tilting the scraper.

2. In a machine of the described class, the combination of a vehicleprovided with a motor; a pair of bars pivotally connected with saidvehicle and projecting forwardly there-. from; a scraper-pan pivotallyconnected with said bars; a winding-drum and. means for driving the samefrom the motor; a cable operatively connecting said drum andscraper-bars;

and motor-operated connections for tilting the scraper; together with aset of spring-actuated catches adapted to engage the scraper-supportingbars when in raised position; and manually-controlled means forreleasing said catches.

3. In a machine of the described class, the

. combination of a vehicle provided with a motor; a pair of barspivotally connected with said vehicle and projecting forwardlytherefrom; a scraper-pan pivotally connected with said bars in the frontof its center of gravity; a winding-drum and means for driving the samefrom the motor; a cable operatively connecting said drum andscraper-bars; and motor-operated connections for tilting the scraper,said scraper-pan being flexibly connected with the supporting-bars inthe rear of the pivotal connections of said pan.

4:. In a machine of the described class, the combination of a vehicleprovided with a motor; a driving-shaft pivotally connected with themotor; connections for driving the vehicle in opposite directions;supporting-bars pivotally connected with the vehicle and havingupwardly-projecting end portions; a scraperpan pivotally connected withsaid upwardlyprojecting end portions; and flexible supportingconnections between said bars and the rear portion of said pan.

5. In a machine of the described class the combination with a vehicle,of a set of liftingbars pivotally connected therewith; a scraperpanpivotally connected. with the lifting-bars; guide standards mounted onthe vehicleframe, and arranged to loosely engage an intermediate portionof thelifting-bars; springactuated catches adapted to engage and supportsaid lifting-bars from the guide-stand ards when said bars are in raisedposition; and motor-driven mechanism for lifting said bars to raisedposition.

6. In a machine of the described class the combination with a vehicle;of a set of liftingbars pivotally connected therewith; asoraperpanpivotally connected With the lifting-bars; guide standards mounted onthe vehicleframe, and arranged to loosely engage an intermediate portionof the lifting-bars; springactuated catches adapted to engage andsupport said lifting-bars from the guide-standards When said bars are inraised position; and

' motor-driven mechanism for lifting said bars to raised position;together With a manuallycontrolled actuated latch adapted to engage therear end of the scraper-pan; said pan being provided with projectionsadapted to be engaged by said latch.

In testimony whereof I affix my signature in the presence of twoWitnesses.

MlCl-IAEL DUNN. Witnesses:

JAs. B. ERWIN, LEVERETT C. XVI-IEELER.

